1) social, sociable, ready and apt to form and maintain communion and fellowship
2) inclined to make others sharers in one's possessions, inclined to impart, free in giving, liberal
Part of Speech: adjective
Citing in TDNT: 3:809, 447
From G2844; communicative, that is, (pecuniarily) liberal: - willing to communicate.
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root κοινωνικός; click on the second column to search for that grammatical form of the root κοινωνικός; click on the third column to search for that word and grammatical form; click on the total to search for the root κοινωνικός.